[networkadmin]

How about the skill of saving hard disk space, memory, and CPU cycles, for a start? The skill of designing simple, reliable, fast, and efficient things, instead of giant complex bloated unreliable pieces of shit? How about a simple, usable web page that doesn't drag my machine to a crawl, despite its supercomputer-like ability to process billions of instructions per second and hold billions of bytes of data in working memory?

Remember when BIOS computers used to boot in seconds, reliably? When chat clients didn't require an embedded copy of Chromium? When appliances and automobiles didn't fall apart in 6 months, costing thousands to "repair" or just needing to be thrown away and bought again?

Remember when there used to be these things called "machine shops" and "Radio Shacks" and "parts stores" that people who built things frequented? Now most people have to call AAA if they get a flat tire. Changing their own oil is out of the question. "Eww, dirty oil, on my clean fingernails?" Many couldn't tell you which end is which on a screwdriver if their life depended on it.

I'd say these concepts are pretty essential, especially for any nation entertaining delusions of waging Total War against other big and powerful nations. Wasteful and foolish nations lose wars.